Refine Edge (select & mask) initialise error since PS19 upgrade

Merged

error message: "Could not apply the workspace because of a program error." appearing after making a selection and pressing the select & mask button in the toolbar. I get this error since upgrading to PS19.

Please provide another solution than deleting your preferences as I do not wish to do that. I have to many customisations and would loose too much time setting them all back. Can I maybe delete one singe preference regarding this specific error?